Computing (FOLDOC) dictionary
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In serial communications, where each bit of the message is
transmitted in sequence, stop bits are extra "1" bits which
follow the data and any parity
bit. They mark the end of a
unit of transmission (normally a byte or character).
one or two stop bits added. Some UART
s even allow for 1.5
stop bits but one is probably the most commonly used. A
serial connection may be described as, for example, "8N1"
which means eight data bits, no parity
and one stop bit.